git.zerfleddert.de Git - proxmark3-svn/blob - client/util.c

   1 //-----------------------------------------------------------------------------
   2 // Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
   3 //
   4 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
   5 // at your option, any later version. See the LICENSE.txt file for the text of
   6 // the license.
   7 //-----------------------------------------------------------------------------
   8 // utilities
   9 //-----------------------------------------------------------------------------
  10
  11 #include "util.h"
  12
  13 #ifndef _WIN32
  14 #include <termios.h>
  15 #include <sys/ioctl.h>
  16 int ukbhit(void)
  17 {
  18   int cnt = 0;
  19   int error;
  20   static struct termios Otty, Ntty;
  21
  22
  23   tcgetattr( 0, &Otty);
  24   Ntty = Otty;
  25
  26   Ntty.c_iflag          = 0;       /* input mode                */
  27   Ntty.c_oflag          = 0;       /* output mode               */
  28   Ntty.c_lflag         &= ~ICANON; /* raw mode */
  29   Ntty.c_cc[VMIN]       = CMIN;    /* minimum time to wait      */
  30   Ntty.c_cc[VTIME]      = CTIME;   /* minimum characters to wait for */
  31
  32   if (0 == (error = tcsetattr(0, TCSANOW, &Ntty))) {
  33     error += ioctl(0, FIONREAD, &cnt);
  34     error += tcsetattr(0, TCSANOW, &Otty);
  35   }
  36
  37   return ( error == 0 ? cnt : -1 );
  38 }
  39
  40 #else
  41 #include <conio.h>
  42 int ukbhit(void) {
  43         return kbhit();
  44 }
  45 #endif
  46
  47 // log files functions
  48 void AddLogLine(char *fileName, char *extData, char *c) {
  49         FILE *fLog = NULL;
  50
  51         fLog = fopen(fileName, "a");
  52         if (!fLog) {
  53                 printf("Could not append log file %s", fileName);
  54                 return;
  55         }
  56
  57         fprintf(fLog, "%s", extData);
  58         fprintf(fLog, "%s\n", c);
  59         fclose(fLog);
  60 }
  61
  62 void AddLogHex(char *fileName, char *extData, const uint8_t * data, const size_t len){
  63         AddLogLine(fileName, extData, sprint_hex(data, len));
  64 }
  65
  66 void AddLogUint64(char *fileName, char *extData, const uint64_t data) {
  67   char buf[100] = {0};
  68         sprintf(buf, "%x%x", (unsigned int)((data & 0xFFFFFFFF00000000) >> 32), (unsigned int)(data & 0xFFFFFFFF));
  69         AddLogLine(fileName, extData, buf);
  70 }
  71
  72 void AddLogCurrentDT(char *fileName) {
  73         char buff[20];
  74         struct tm *curTime;
  75
  76         time_t now = time(0);
  77         curTime = gmtime(&now);
  78
  79         strftime (buff, sizeof(buff), "%Y-%m-%d %H:%M:%S", curTime);
  80         AddLogLine(fileName, "\nanticollision: ", buff);
  81 }
  82
  83 void FillFileNameByUID(char *fileName, uint8_t * uid, char *ext, int byteCount) {
  84         char * fnameptr = fileName;
  85         memset(fileName, 0x00, 200);
  86
  87         for (int j = 0; j < byteCount; j++, fnameptr += 2)
  88                 sprintf(fnameptr, "%02x", uid[j]);
  89         sprintf(fnameptr, "%s", ext);
  90 }
  91
  92 // printing and converting functions
  93
  94 void print_hex(const uint8_t * data, const size_t len)
  95 {
  96         size_t i;
  97
  98         for (i=0; i < len; i++)
  99                 printf("%02x ", data[i]);
 100
 101         printf("\n");
 102 }
 103
 104 char * sprint_hex(const uint8_t * data, const size_t len) {
 105         static char buf[1024];
 106         char * tmp = buf;
 107         size_t i;
 108
 109         for (i=0; i < len && i < 1024/3; i++, tmp += 3)
 110                 sprintf(tmp, "%02x ", data[i]);
 111
 112         return buf;
 113 }
 114
 115 void num_to_bytes(uint64_t n, size_t len, uint8_t* dest)
 116 {
 117         while (len--) {
 118                 dest[len] = (uint8_t) n;
 119                 n >>= 8;
 120         }
 121 }
 122
 123 uint64_t bytes_to_num(uint8_t* src, size_t len)
 124 {
 125         uint64_t num = 0;
 126         while (len--)
 127         {
 128                 num = (num << 8) | (*src);
 129                 src++;
 130         }
 131         return num;
 132 }
 133
 134 //  -------------------------------------------------------------------------
 135 //  string parameters lib
 136 //  -------------------------------------------------------------------------
 137
 138 //  -------------------------------------------------------------------------
 139 //  line     - param line
 140 //  bg, en   - symbol numbers in param line of beginning an ending parameter
 141 //  paramnum - param number (from 0)
 142 //  -------------------------------------------------------------------------
 143 int param_getptr(const char *line, int *bg, int *en, int paramnum)
 144 {
 145         int i;
 146         int len = strlen(line);
 147
 148         *bg = 0;
 149         *en = 0;
 150
 151   // skip spaces
 152         while (line[*bg] ==' ' || line[*bg]=='\t') (*bg)++;
 153         if (*bg >= len) {
 154                 return 1;
 155         }
 156
 157         for (i = 0; i < paramnum; i++) {
 158                 while (line[*bg]!=' ' && line[*bg]!='\t' && line[*bg] != '\0') (*bg)++;
 159                 while (line[*bg]==' ' || line[*bg]=='\t') (*bg)++;
 160
 161                 if (line[*bg] == '\0') return 1;
 162         }
 163
 164         *en = *bg;
 165         while (line[*en] != ' ' && line[*en] != '\t' && line[*en] != '\0') (*en)++;
 166
 167         (*en)--;
 168
 169         return 0;
 170 }
 171
 172 char param_getchar(const char *line, int paramnum)
 173 {
 174         int bg, en;
 175
 176         if (param_getptr(line, &bg, &en, paramnum)) return 0x00;
 177
 178         return line[bg];
 179 }
 180
 181 uint8_t param_get8(const char *line, int paramnum)
 182 {
 183         return param_get8ex(line, paramnum, 10, 0);
 184 }
 185
 186 uint8_t param_get8ex(const char *line, int paramnum, int deflt, int base)
 187 {
 188         int bg, en;
 189
 190         if (!param_getptr(line, &bg, &en, paramnum))
 191                 return strtol(&line[bg], NULL, base) & 0xff;
 192         else
 193                 return deflt;
 194 }
 195
 196 uint32_t param_get32ex(const char *line, int paramnum, int deflt, int base)
 197 {
 198         int bg, en;
 199
 200         if (!param_getptr(line, &bg, &en, paramnum))
 201                 return strtol(&line[bg], NULL, base);
 202         else
 203                 return deflt;
 204 }
 205
 206 uint64_t param_get64ex(const char *line, int paramnum, int deflt, int base)
 207 {
 208         int bg, en;
 209
 210         if (!param_getptr(line, &bg, &en, paramnum))
 211                 return strtoll(&line[bg], NULL, base);
 212         else
 213                 return deflt;
 214
 215         return 0;
 216 }
 217
 218 int param_gethex(const char *line, int paramnum, uint8_t * data, int hexcnt)
 219 {
 220         int bg, en, temp, i;
 221
 222         if (hexcnt % 2)
 223                 return 1;
 224
 225         if (param_getptr(line, &bg, &en, paramnum)) return 1;
 226
 227         if (en - bg + 1 != hexcnt)
 228                 return 1;
 229
 230         for(i = 0; i < hexcnt; i += 2) {
 231                 if (!(isxdigit(line[bg + i]) && isxdigit(line[bg + i + 1])) )   return 1;
 232
 233                 sscanf((char[]){line[bg + i], line[bg + i + 1], 0}, "%X", &temp);
 234                 data[i / 2] = temp & 0xff;
 235         }
 236
 237         return 0;
 238 }
 239
 240 int param_getstr(const char *line, int paramnum, char * str)
 241 {
 242         int bg, en;
 243
 244         if (param_getptr(line, &bg, &en, paramnum)) return 0;
 245
 246         memcpy(str, line + bg, en - bg + 1);
 247         str[en - bg + 1] = 0;
 248
 249         return en - bg + 1;
 250 }